Improvement in ventilators for windows



GEORGE W. PELL. Ventilatoyrfor Windows.

Patenhted A pri| 16, 18'12.V

I. u l

@ummm R E nl GEORGE W. PELL, OF NEW YORIQN. Y.

IMPROVEMENT IN VENTILATORS FOR WINDOWS.

Speccation forming part of Letters Patent No. 125,755, dated April 16, 1872.

Specification describing a new and useful Improvement in Yentilators, invented by GEORGE W. PELL, of the city, county, and State of New York.

My invention relates to improvements in that class of ventilators which are adapted to be introduced into a space under the lower sash, which is raised up a short distance for the purpose, and which takes the air in under the sa-sh and discharges it upward in a direct course to the ceiling; and it consists of a long tin or other sheet-metal case constructed in two parts, telescoped together so as to be lengthened or shortened to adapt it to windows ofany width, shaped on the bottom and at the ends to lit the windowsill and sides, and provided with a ledge on the upper and outer side for the sash, and adapted to make a symmetrical apparatus extending acrossthe whole breadth of lthe window, and aiiording all the capacity required without projecting into the room' in such manner as to be objectionable in an aesthetic sense, as others of this character are.

Figure l is a side elevation of my improved ventilator, looking at it from the outside.` Fig. 2 is a plan view and horizontal section of a window-frame in dotted lines, showing the ap-` plication thereto. Fig. 3 is a section of Fig. 2 on the line a: and Fig. 4 a vertical section on the line y y of Fig. 3.

Similar letters of reference indicate corresponding parts.

A and B represent the two parts of a long tin or other sheet-metal case, of the form in cross-section shown in Fig. 3, with an opening, G, in the lower part at one side to receive the air, and another, D, at the top for discharging it into the room. These two parts are open at one end, and these ends are so constructed that one fits into the other, or partly inside and partly outside in any suitable way for connecting them so as to shorten or lengthen the two together to suit windows ofdiii'erent widths. The said parts have several transverse plates, E, at intervals between the ends, dividing the space into several passages, and connecting the two long sides and bottom to make the case rigid and strong. At the outermost part of the bottom is a depression, F, resting down upon the seat Gr of the lower sash, while the inner most part of the bottom rests on the bottom window-stop H; and about half way (more or less) up the outer side is a beveled ledge, I,

whereon the lower cross-bar ofthe window-sash rests when the ventilator is in position, and at the ends are projections J, which en ter the grooves between the inner and middle sashstops K L, by which the apparatus is made to iit into the window very nicely, and is held very firmly in place. The discharge-openings D are provided with hinged covers M, which are maintained in a vertical position when opened, and thus serve, in a measure, to prolong the vertical passage by which the air is directed upward. These covers may be made in short sections to close the ventilator more or less, according to circumstances.

It will be observed that, by having the airpassages extended the whole breadth. of the window, they will aii'ord all the capacity required, and yet be quite narrow transversely, so as not to project into the room so far as to be objectionable. It will also be noted that, by reason ot' the case being made of sheet metal or other thin substance, there is no material oiset at the point where the two sections meet, as in the case of the use of two thick boards of wood.

The air-passages may be provided with ue wire-gauzepartitions to exclude insects and the like.

Havingthus described my invention, I claim as new and desire to secure by Letters Patentl. A ventilator, consisting of two sections, A B, formed of sheet metal or other suitable substance, substantially in the form in cross' section represented in Fig. 3, with receiving openings C at the outside and dischargeopenings D at the top, and telescoped together at one end for lengthening and shortening, and formed on the other ends, and provided with covers, all substantially as specified.

2. The arrangement of the covers so as to form, when open, a prolongation of the vertical j air-passage, substantially as specified.

GEO. W. PELL.

Witnesses:

T. B. MosHER, GEO. W. MAEEE. 

